Bull Island (California) facts for kids

Quick facts for kids
Bull Island

USGS aerial imagery of Bull Island
Bull Island Location in San Francisco Bay Area Show map of San Francisco Bay Area Bull Island Location in California Show map of California Bull Island Location in the United States Show map of the United States
Geography
Location	Northern California
Coordinates	38°13′20″N 122°18′24″W / 38.22222°N 122.30667°W / 38.22222; -122.30667 (Bull Island)
Adjacent bodies of water	Napa River
Highest elevation	3 ft (0.9 m)
Administration
United States
State	California
County	Napa

Bull Island as it appears on a 1951 USGS topographic map.

An aerial view, looking toward the west, of the Napa River where it flows into San Pablo Bay through Vallejo. Islands visible include, from bottom of image: Mare, No. 1, Knight, Russ, No. 2, Green, Bull, Edgerly, Coon, Little, and Tubbs.

Bull Island is an island in the Napa River, upstream of San Pablo Bay (an embayment of San Francisco Bay). It is in Napa County, California, and managed as part of Fagan March Ecological Reserve, directly adjacent to the Napa-Sonoma Marshes Wildlife Area. Its coordinates are 38°13′20″N 122°18′24″W / 38.22222°N 122.30667°W / 38.22222; -122.30667 (Bull Island), and the United States Geological Survey measured its elevation as 3 ft (0.91 m) in 1981.